Pressure regulator



Se t; 4, 1923;

J. w; GHE E N -PRESSURE REGUILATOR Filed Feb. 24, 192p a gwuz'ntoz Patented Sept. 4, i923.

: tee,

Conn w. Gas a -.01 sesame-Ems, 'onrl'rronnra r-ninssurtn new an;

Application fiieer tma-iy 24, 1820.:-Serial Na-BlgOB.

To nZlwlzom-itmay concern 1 v Beitknoivn that ilgelol-rn VLGIIEENyFfi citizen of;the United States; residing atiLos Angelesfln the county of Los Angeles', State of California, have-invented a newand use; ful Improvement in Pressure Regulators-of which the following is a specification.

My invention relates to an improvement in pressure regulators having a flexible diaphragm by WVlHCll a valve is operated,'and

my object is to provide a means whereby an extremely sensitive instrument may be produced.

In this tvpe otpressure regulatorsthe disc covering-thediaphragm is guided inits movement either a shaft in the center or a piston forming the disc, In this case the guides must' be long to prevent cramping, making the pressure regulator cumbersome and otherwiseimpracticable. Where the disc has a shaft in the center for aguide, the least inaccuracy, either in the stem or the disc being out of center or the diaphragm having more stretch to one side of the center orra looseness in' guides destroys the sensitiveness of the regulator 'Vhth my invention the pres sure is taken from the disc from three or more points near the edge,- and by means ofpivoted levers converging at apoint directly over the center of the disc, so thatthe 'p'res sures are always toward and never away fr n the center. This principle of suspen-. sion from a number of points and converging to a central point. isemployed in platform scales, and for the first time is by me used in pressure regulators. a f

' Ihave illustrated my invention in its-most simple form in t he accompanying drawings, in which Fig. 1 is a top plan view of a pressure regulator embodvin gr the principles of my lnvention, the new being taken looking downward in F 1g. 2.

F ig. 2 is a vertical sectional deta-il on the line2 -2 of Fig. l and looking in the direc- 7 tion of the arrows.

The base plate A is circular in planand has a semispherical ,dGPIESSlOIltL-fiflltS center, a. finished fiat face ,7) around thedepres $1011 a; a bearing 1, extending outwardly at one side and a supporting ledge 11, extendposite thebearingl.

The thin flexible diaphragm B fitsupon the flat face C and covers the depression A.

ing outwardlvi at: the'side diametrically op- 1 phragm- B around tlie depressiondflf andflisi held in place by cap"screws 2.,-to make a closed chamber D between the-lease plate=1:n, and the diaphragm '13.: Theipressuretpipe stein 14 connects l7 and is connected to the,

valve 15 ,in-the valvecasing 16. An E connects'the pressure pipe 20 to'one slde of from the other sidefz 5 y 7 V v A bifurcated postlO extends upward from. the clamping plate 3, in line with thebearing thevalve casing 16;and the-outlet:22 leads The clamping.lplateQ-S' fits uponthe i 20 has 5111RPM! connected into the opening 21, l

' leadingthrough the center of the base plate A to the chamber D. The valve-casing) 16 i is supported 'by the ledge 11, The valve j 1 and the ledge 11. The lever'9 is pivoted' inthe-bifurcation atthe upper end of the post 1O and the short end of the leverQrests upon the upper end of the stem '14." The pressure in'the pipe QQ-and arm E tends to 1 hold the valve 15-closed. A -retra'ctile coil spring- 12 connects the long endfof the lever 19 to. the bea'ring'l, arm 9, the tensionlof the spring 12 being exerted :to swingthe short end of the lever 9 upward and 'allow'the valve 15 to close. I

The details of the three point' equali'zer connection between the pressure plate 18) I and the lever?) are astollowsz' t V 'Biturcated earin'g posts 5, 5 and 5", eX-- tend upwar'd-from-t-he clamping plate 3 and.

are arranged concentric and radially relative to the chamber D. Balls 19, 19? and 19*, are mounted upon the pressure plate 18. Levers l, 4* and 4P are pivotally connected to v the posts 5; 5 'and 5 and rest upon theballs 19; 1.9 and 19 Balls-65 6 and 6 'a're'1mounted upon the inner ends of the levers 4, 4; andst". Anevener plate 7 is mounted upon" the balls 6,' 6 and 6 QA ball8 ismoimted' will hold the parts under suflicient tension to keep them in working-order. The equal- 116 izer connection prevents the pressure, plate 18 fromrrocking upon the diephragrn, so

that the pressureleast friction.

I claim:

plate will move, With the o 1; In a pressure regulator, a. base plate In wardly from the clampin'g'plete end ar ranged'concentrie to the depression, a pressure plate upon the diaphragm, balls'upon the pressure plate near its edge, levers connected toythe posts and bearing. upon the 15 balls, second balls upon the inner ends of the levers, :an evener plate upon the second balls, a ball upon the center of the evener plate, a lever pivotally mounted and engaging the ball, a spring pulling the lever 1 against the ball, andevalve connected to the opposite end of the lever from the spring.

2. In a pressure regulator, a base plate, a diaphragm mounted upon thebase plate and forming a pressure ch amber, a pressure plate upon the'diaphragm, a valve, a lever con;

nected to the valve andextendingfover the pressure plate, and a three pointsequalizer connection. between the pressure "plate and JOHN W; GHEENQ the lever. 

